DE1244863B - Magnetic core circuit with shift register and fir tree decoding - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY GERMAN WAW PATENT OFFICE

EDITORIAL

GlIc

H03k

Int. CL:

German class:

Number: 1 244 863

File number: A 39829IX c / 21 al

Filing date: March 28, 1962

Opened on: July 20, 1967

'üZ-

So-called fir tree circuits consisting of switching relays are used to decrypt binary-encrypted signals known. Amplifying memory arrangements are also known which incorporate magnetic cores in FIG Have fir tree circuit, which provide information in sequence in the various stages the fir tree circuit and finally the information in parallel from the output stage of the Increased circuit can be seen.

It has already been proposed to use magnetic core fir tree circuits in a specific circuit to use for decoding binary encrypted signals.

The invention relates to the transmission of the signals to be decrypted to the magnetic core Christmas tree circuit using a known shift register consisting of magnetic cores, with the advantageous effect that the shift register and the fir tree circuit with Input currents are operated essentially the same size and under the same temperature conditions. The magnetic core shift register and the magnetic core fir-tree circuit are in the same Clock cycle controlled, and the decryption takes place together with the reading from the shift register instead of.

The magnetic cores of both the shift register and the Christmas tree circuit can be found in per se known way transfer preparatory windings application, which the output openings of the Cores prevail and the polarization state of an excited core prior to the transmission process reverse the magnetic flux around the output port, so that the transfer process of the energized Core is connected to a deletion process of the same.

A circuit arrangement for the transmission of signals encrypted in pulse form from a magnetic core shift register to a magnetic core fir tree circuit used for decryption, in which the cores of the fir tree circuit each have several output openings have and each core via one of its several exit openings with a first , Core of the next core stage and another exit opening with another core this next core stage is connected, using the exit openings of the cores in the Slide register and transmission preparation windings that enforce the Christmas tree circuit, is characterized according to the invention in that a first transmission preparation winding the decryption Christmas tree circuit of magnetic core circuit with shift register and Fir tree decoding

Applicant:

AMP Incorporated, Harrisburg, Pa. (V. St. A.)

Representative:

Dr. phil. G. B. Hagen, patent attorney, Munich 71, Franz-Hals-Str. 21

Named as inventor:
Joseph Patrick Sweeney,
Harrisburg, Pa. (V. St. A.)

Claimed priority:

V. St. v. America April 4, 1961 (100 717)

a first transmission preparation current source is excited when this is excited by a first signal is achieved by changing the polarization of the magnetic flux in one of the cores of the shift register is generated, and in that a second transmission preparation winding of the fir tree circuit is energized by a second transmission preparation power source when it is through a change in the polarization of the magnetic flux is excited in an auxiliary magnetic core, wherein the auxiliary magnetic core is in a state of magnetic remanence, that of the one of the first-mentioned nucleus is opposite. Another embodiment of the invention Circuit arrangement is characterized in that the shift register has a first auxiliary core and a second auxiliary core and that the second auxiliary core with the first auxiliary core via a Transformer winding is coupled and the first auxiliary core through a further transformer winding with the penultimate core of the shift register is coupled and that the two auxiliary cores with the last core of the shift register enforcing clearing and shifting winding are coupled and that the output winding of the first auxiliary core, the second transmission preparation power source of the fir-tree circuit and an output winding of the last

709 617/333

3 4

The core of the shift register is the first transmission input winding, which is the small input opening of the Preparatory power source of the fir tree circuit penetrates the core concerned; this opening who controls whereby the second auxiliary core is fed with a further one of the signals, which is a binary digit re-erasure and displacement winding is coupled and the give and either excite the core or not excite the first auxiliary core with the second auxiliary core through the 5. The state of magnetic remanence Transformer winding coupled in such a sense to the first core is in the shift register of is that when the penultimate nucleus is passed on from its Er nucleus to nucleus.

excited state transferred to its quenched state. A first auxiliary core 17 is through the transmitter and he hereby a signal to the last core winding 20 coupled to the second auxiliary core 18, of the shift register emits the first transmission io where the transformer winding is the small output preparation current source is excited and, when the opening 19 of the core 17 and the main opening of the penultimate, already erased core of the shift register core 18 penetrates; the core 13 is with the core is controlled in the quenching state, the second over- 18 coupled through the transformer winding 22, weltragungs-Vorprepreigungsstromquelle is excited. before through the small opening 21 of the core 13 and

Another embodiment of the invention, the main opening of the core 18 is guided, namely According to the circuit arrangement is characterized in such a way that when the core 14 is excited by the fact that the shift and erase current is left, the core 18 is erased. The first core of the remote power source of the fir tree circuit through shift register and every second subsequent core the output winding of the first auxiliary core of the shift register as odd cores in the following is controlled. 20 draws, while the remaining nuclei, so does the According to a further embodiment of the Er core 14, hereinafter referred to as straight cores it is intended that the first core level of the net will be.

Christmas tree circuit from a single core. A winding 30 for shifting from one un-

stands and this core causes a straight core to a straight core with an excitation current source is connected, which is controlled by a winding 25 deleting all odd cores and shifts which is a stored information of the odd kernels with the kernels of the last kernel stage the fir tree circuit is coupled and the Er- according to the periodicity of the clock; the Excitation current source energized when one of the cores of the winding 30 penetrates all of the main openings Core level of his state of excitement in the licher odd cores of the register and the small ones Erased state is brought. . 30 opening 17 'of the auxiliary core 17 and has an over-

One embodiment of the invention is in the wear preparation winding 32, which is the small following description with reference to outlet opening 19 of the core 17 and interspersed discusses the figure. The figure shows a block diagram through the small outlet opening 15 and the one in the clock Circuit arrangement according to the invention and the next following small opening 21 of the kerge in a clockwise direction, an output signal is carried to a specific 35 nes 13; furthermore, the winding penetrates the Exit opening corresponding to an encrypted small exit opening of all other unSignal to create, . straight cores.

The shift register 12 consists of a series of ma A shift winding 34 for shifting

magnetic cores that have a plurality of openings on an even core to an odd core and a substantially rectangular hysteresis 40 sets the major openings of all straight cores have resis loop; it's just the last two of the shift register and the main opening of the auxiliary core 13 and 14 shown. Each core has a larger core 18 and the small opening 19 'of the auxiliary core middle opening and four smaller openings, the 17. The winding 34 has a transmission pre-symmetrical arranged around the large opening around winding 32 ', which is the exit opening of a are. Each core can have a magnetic state permeating each of the even cores, for example table excitation, in which part of the opening 14 'of the core 14. The core 14 has a magnetic flux of the core clockwise test output winding 10, which is also directed through the NC is, while another part is guided in the counter clock 14 ', and one is the main opening is clockwise polarized; The asserting output winding 26 is in the quenched state. all magnetic flux of the core in clockwise direction po- 50 The winding 26 is larized to a first transmission, wherein the energized state of a core preparatory power source 36 connected to the one the binary number 1 and the erased state the binary number 2 decryption fir tree circuit 46, best characterized. Although not all of the several openings on the front end Cores provided small openings in which magnetic cores 44, 5.0, 52, 54, 56, 58 and 60 belongs; Make use of the provided embodiment, 55 these cores are the cores of the shift register and so it is similar in terms of the simplification of the auxiliary cores 17 and 18 and are step-manufacturing expediently, cores of the same type are arranged by reference. Turn an output winding 28 through. Each core therefore has four small openings - the main opening of the auxiliary core 18 and is on nations. The cores are coupled to one another, a second power source 40 is connected to the one that binary data transmitted by the state of the magnetic 60 second transmission preparation current to the. see remanence of the cores are characterized by fir tree circuit 46 supplies; winding 34 is One core to another core are connected to a power source 74, which Verden can; These purposes are used, for example, by supplying the shift current to the fir tree circuit. Transformer winding 16 between the cores 13 and The Christmas tree circuit 46 consists of three

14, showing the small exit opening 15 of the core 13 65 core stages, the first stage consisting of the core 44, and the main opening of the next following core 14, the second stage of cores 50 and 52 and the interspersed. The first core of the shift register, the third stage consists of cores 54, 56, 58 and 60, rather not shown in the drawing, the core 44 has a first input winding 44 ',

5 6

which penetrates the small inlet opening 46 'and at 4. The winding 32 is energized and causes a

a power source 70 is connected, which Er- transmission preparation to the output

provides excitation current pulses to core 44. The core openings of the odd cores.

44 is connected to the core 50 of the second stage through which it should first be assumed that all

Transformer winding 62 coupled, which borrowed a first 5 odd cores of the shift register 12 small Output opening 61 of the core 44 and which are erased by an erasing current of the winding 30 Main opening of the core 50 passes through. The core 44 has been fed, and that the core 13 is in the Erist in a similar way with the core 52 the second state of excitation was brought about by a signal which Stage coupled by the transformer winding 66, characterized by a binary digit 1 and from which the pre-softened the main opening of core 52 originates from the second io forward core of the shift register; it is Stage and a second small exit opening 64 which therefore the magnetic flux around each of the small openings Core 44 interspersed. The core 50 is polarized with the cores of the core 13 around in a clockwise direction. 54 and 56 of the third stage through the transformers - a direct current forming a preparatory pulse Windings 54 'and 56' coupled, which by means of which the winding 32 and the winding 30 become both small output openings of the core 50 and 15 led that the polarization direction of the magnet die Main openings of the cores 54 and 56 are performed. flow in the core material around the opening 15 of the The second stage core 52 is reversed with the core 13 energized with the cores 58, i.e. i.e. that and 60 of the third stage by the transformer winding a counterclockwise polarization is present. One hung 86 and 84 coupled, which are the first and such reversals of the magnetic flux by a smaller one second small exit opening 82 or 80 of the core 20. Opening around by feeding a transmission 52 and the main openings of the core 58 and 60 preparation stream will hereinafter be referred to as push through. Output windings 1, 3, 5 and 7 are preparing for the transfer of the small opening the relevant small exit openings that draws. When the core 13 is subsequently deleted Third stage cores will be coupled and output, so will the polarization of the magnetic flux in windings 2, 4, 6 and 8 are reversed with the second small 25 of the outer leg of the opening 15, so Output openings of the relevant cores of the third - that a signal, which characterize the binary value 1 Level coupled. Each of the windings 1 to 8 siert, in the winding 16 is induced and the core can be connected to a useful circuit. .14 excited. Since the winding 32 is also through the

A first transmission preparation winding 38 extends opening 21 of the core 13, so a extends from the power source 36 through the output 30 transmission preparation, which causes opening 21, so Passages of the first type of each core that the deletion of the core 13 is a binary signal 1 in Fir tree circuit and a second transmission of the winding 22 induced. The winding sense of the Preparatory winding 42 extends from winding 22, however, is such that the signal is the Power source 40 through the second small output core 18 clears. When the core 13 is in its openings of each core of the Christmas tree scarf is in the deleted state that corresponds to the binary digit 0 tion. A first quenching winding 72 extends from is significant so there is no current when energized of the current source 74 through the main openings of the winding 30 in the winding 16 or the winding cores the first and third stage; a second development 22 is induced and the core 14 would continue in Erase winding 76 extends from the power source to remain in its erase state, in which it is under 74 through the main openings of the cores of the second 4 ° of the control of a clock pulse by a Stage, d. H. all of the extinguishing effects brought about by the main openings of the cores in the winding 34 straight steps. impulse was brought. The winding 34 is with the

The power source 36 supplies power to the winding core 17 coupled in a sense that is similar to the winding 38, if a positive signal is sensed with the even cores of the shift register via the winding 26 is, and the current source 40 is opposed to 45 so that a current in the winding 34 arranged that they only apply a positive for the purpose of deleting the even cores the Signal through the winding 28 brings current to the winding core 17 in its energized state and not 42 supplies. The current source 74 energizes the windings the same clears. The winding 30 for erasing the 72 and 76 each with a second signal on the winding - odd cores of the register is connected to core 17 in ment 34. 50 coupled in such a way that the core 17 is deleted

A winding 71 is used to erase the current when the winding 30 is energized and the unource 70 clears straight cores through the two small exit openings; an energization of the winding 30 gen of all cores of the third stage, which can therefore be a binary number 1 from the core 17 on The winding in adjacent cores is transferred to the core 18 in the opposite direction. A binary number 1 signal that is wrapped. '55 ches in the winding 22 when erasing the core 13

The shift register operates in the subsequent induced is canceled by the current that is induced Clock: is induced in the winding 20 when the core 17

1. The winding 30 is energized and thereby extinguished, so that the core 18 is extinguished retains the odd cores of the shift register. If the winding 22 does not erase the same and the 60 stored in these cores is energized in time with the winding 20, i. i.e. if Transferring data to the even cores. the core 13 is not energized before the extinguishing process,

2. The transfer preparatory windings 32 become the core by the energization of the winding 30 are excited and cause a transmission 18 to be excited.

Preparation of the exit openings of the straight lines. Therefore, when the core 14 is energized, the

Cores. 65 core 18 erased, and when core 14 erased

3. The winding 34 is energized and quenches the being energized, the core 18 is energized when a binary wheel cores and transmits the signal 1 stored there from the core 13 to the core 14 Information on the odd kernels. becomes, a binary signal 1, which is a positive

Polarity is generated in winding 26, whereas a binary signal 1 is induced in winding 28, when the binary value 1 is transferred from the core 17 to the core 18. It follows that if the core 13 was energized prior to energizing the winding 30, a positive signal is supplied to the winding 26 and that if the core 13 is erased when the winding 30 is energized, a positive signal is generated in the winding 28. Conversely, when winding 34 is energized, a binary signal becomes 0, which has a negative polarity, induced in either winding 26 or winding 28, however not in both windings, depending on the state of the cores 14 and 18; these Signals can be fed to the power source 36 or 40 of your choice, but they have no other Influence, since the current sources 36 and 40 do not respond to negative signals.

When the core 44 is energized by first energizing the current source 70, thus the magnetic flux around the small openings 61 and 64 of the core 44 is polarized in a clockwise direction. The opening 61 is therefore brought into the transmission preparation state by the power source 36 brought when an excitation of the core 14 by a binary signal 1 as a result of an excitation of the Winding 30 takes place. The opening 64 is brought into the transmission preparation state when the current source 40 is excited by a binary signal 1, specifically if by exciting the winding 30 excitation of the core 18 takes place.

Wentr the winding 34 during a clock cycle is energized, the current source 74 is energized and one of the cores of the odd stages becomes one a cancellation causing magnetomotive force is supplied, however, if the winding 34 during the The next clock cycle is energized, the power source 74 is switched and the winding 76 is turned energized, which supplies the cores of the even stage with an extinguishing magnetomotive force. The current source 74 is switched again in the next cycle of the clock, so that a The winding 72 is excited.

The mode of operation of the Christmas tree circuit consisting of magnetic cores is as follows: Es it is assumed that the core 44 has been energized by the current source 70 and that after a previous one Excitation of the winding 30 and after erasing the core 13, the core 14 in its erased state remained and that thereby the core 18 was excited and the winding 28 was also excited and one Transfer preparation of the second small opening 64 of the core 44 has taken place. If now the winding 34 is re-energized after the preparatory winding 32 'has been energized, the Current source 74 current to the winding 72 and it is thereby the core 44 deleted, so that the winding 66 is excited by the reversal of the magnetic flux in the outer leg of the opening 64 and the Brings core 52 in the energized state while core 50 remains in the erased state because a transmission preparation the opening 61 has not taken place. Since the cores of the third stage are all are in the erased state, they are not affected by the current of the winding 72.

It is now assumed that the next signal fed to the core 14 when the Winding 30 is also a binary signal 0, then the current source 40 will again excite the winding 42, so that a transfer preparation of the second small exit opening 80 of the core 52 takes place, whereby it should be noted that this core is the only core of the fir tree circuit which is currently in a state of excitement; it is therefore the only nucleus whose polarization is its magnetic flux can be reversed. The transformer winding 84 therefore energizes the core 60 when the core

ίο 52 is deleted by energizing the winding 34, wherein the power source 74 switches and the winding 76 energizes. Since the winding 38 was not energized, the winding 86 is also not energized.

Meanwhile, if the next binary signal supplied to the core 14 is a binary signal 1, so the current source 36 is controlled so that the winding 38 is excited and a transmission preparation the first small exit opening of the core 60, this core being the only core of the

ao Christmas tree circuit 'is in the state of excitement is located. If the winding 34 is then again energized, the current source 74 is extinguished the kernels of the odd stages, and it will thereby reverse the polarization of the magnetic flux in the outer leg of the first small exit opening of the core 60 causes a binary signal 1 is induced in the winding 7, which indicates that the shift register has the binary number 100 was taken. Since the second small exit opening of the core 60 is no transmission preparation received, no signal is induced in the winding 8. Because only the core 60 out of the excited state has been brought into the quenched state, none of the output windings of the cores 54, 56 and 58 excited ·. Since the winding 71 penetrates all two small openings of the cores of the third stage, so an excitation of the output winding of these cores, in this case the winding 7, causes a Feedback of the current source 70 and an excitation of the core 44, so that the fir tree decryption circuit i is available for further decryption operations.

It is obvious that during each decryption one of the output windings 1 to 8 is excited in accordance with the three binary signals taken from the shift register. So Binary number 111 excites winding 1, binary number 110 excites winding 2, binary number 101 excites winding ment 3, the binary number 100 the excitation of the winding 4, the binary number 011 the excitation of the winding 5, the binary number 010 the excitation of the winding 6, the binary number 001 the excitation of the winding 7 and the binary number 000 the excitation of the winding 8; it is a core level for each binary digit of the A binary number to be deciphered is provided and an output winding (1 to 8) for each possible combination of binary signals. To decipher binary numbers with more than three binary digits, a A correspondingly larger number of stages and output windings is required for a four-digit Binary number requires the use of four binary levels and sixteen output windings. ,

The fir tree circuit used for decryption is in the clock cycle of the shift register controlled and therefore the decryption takes place together with the reading from the shift register instead of. Since the one used for decryption

10

Fir tree circuit and the shift register magnetic cores of the same type can both be im The same temperature range can be operated and input currents of the same size are used to do. The current sources 36, 40 and 74 always work with the same load, since there is only one core of the decryption circuit is excited at any point in time.

Claims (4)

Patent claims: 1. Circuit arrangement for the transmission of signals encrypted in pulse form from a Magnetic core shift register to a magnetic core Christmas tree circuit used for decryption, in which the cores of the fir tree circuit each have several exit openings and each core via one of its plurality of exit openings with a first core of the next core stage and via a further exit opening with a further core of this next core stage is connected, using the exit openings of the cores in the Shift register and transmission preparation windings that enforce the Christmas tree circuit, characterized as that a first transmission preparation winding (38) of the decryption fir tree circuit (46) is energized by a first transmission preparation power source (36) when this is excited by a first signal generated by a change in the polarization of the magnetic flux in one of the cores (14) of the Shift register (12) is generated, and in that a second transfer preparation winding (42) of the fir tree circuit (46) from a second transmission preparation power source (40) is excited when this is caused by a change in the polarization of the magnetic flux is excited in a magnetic auxiliary core (18), the magnetic auxiliary core (18) each is in a state of magnetic remanence, which is that of the first-mentioned core (14) is opposite. 2. Arrangement according to claim 1, characterized in that the shift register (12) has a first auxiliary core (18) and a second auxiliary core (17) and that the second auxiliary core (17) with the first auxiliary core (18) · via a transformer winding (20) is coupled and the first 'auxiliary core (18) through a further transformer winding (22) is coupled to the penultimate core (13) of the shift register and that the two Auxiliary cores (17,18) with the erase- and displacement winding (34) are coupled and that the output winding (28) of the first auxiliary core (18) the second transmission preparation power source (40) of the fir-tree circuit and an output winding (26) of the last core (14) of the shift register (12) the first transfer preparation power source (36) controls the fir tree circuit, the second auxiliary core (17) having a further erasing and shifting winding (30) is coupled and the first auxiliary core (18) with the second auxiliary core (17) through the transformer winding (20) in such a Meaning coupled is that when the penultimate nucleus (13) from its state of excitement to its Erased state is transferred and it sends a signal to the last core (14) of the shift register (12) outputs, the first transmission preparation current source (36) is energized and, if the penultimate, already erased core (13) of the shift register (12) is controlled in the erased state the second transmission preparation power source (40) is energized. 3. Arrangement according to claim 1 or 2, characterized in that the displacement and Current source (74) of the fir tree circuit through the output winding, which supplies extinguishing current (34) of the first auxiliary core (18) of the shift register (12) is controlled. 4. Arrangement according to claim 1 or one of the following claims, characterized in that that the first core stage (44) of the fir tree circuit consists of a single core and this core is connected to an excitation current source (70) controlled by a winding (71) which with the cores (54, 56, 58, 60) of the last core stage of the Christmas tree circuit is coupled and energizes the excitation current source (70) when one of the cores of the last Core level is brought from its state of excitement to the state of extinction. Considered publications: German Patent No. 1,084,054; German Auslegeschrift No. 1097 484; German patent application 14652, VIII a / 21 a ^
(announced on August 28, 1952); Journal "Electronic Rundschau", No. 10,
1955, pp. 349 to 353.. 1 sheet of drawings 709 617/333 7.67 ι Bundesdruckerei Berlin